Removing The Coolant Hose From The Passenger Compartment Heater
Clamp the hoses with hose clips.
Place paper under the inner hose connection to collect any spilled coolant.
Turn the quick-release connector (the inner of the 2 hoses) slightly in the direction of the arrow so that the lock opens. At the same time, pull the coolant hose straight out of the coolant pipe.
NOTE:
Tie the hose up to the engine so that it does not fall down and trap the hose connector against the firewall during installation.